22results about How to "Unbreakable" patented technology

The invention provides a method for separating boron isotopes by using ferroferric oxide / resin microspheres, which comprises the following steps: in a chromatographic column, taking a boric acid-monosodium borate aqueous solution with the pH value of 6-7 as an adsorption solution, and taking a sodium hydroxide aqueous solution with the pH value of 10-11 as a desorption solution to obtain a 10B-rich boric acid aqueous solution; the preparation method of the microspheres comprises the following steps: (1) adding dimethyl sulfoxide to swell polystyrene-divinylbenzene resin microspheres, adding concentrated sulfuric acid to treat until the sulfonation rate is 0.3-0.4 mmol / g, washing with water, treating with an ammonium chloride aqueous solution, washing with water, drying in vacuum, spraying with a ferric chloride-ferrous chloride aqueous solution, evaporating in vacuum to remove part of water, and introducing ammonia-containing nitrogen flow to treat to obtain polystyrene-divinylbenzene resin microspheres; and washing with water, grinding the surface, treating with a sodium hydroxide aqueous solution and washing with water. The method is simple in separation operation, easy to implement and high in efficiency, and has a certain application prospect; the chromatographic column is relatively stable in performance, reproducible and relatively long in service life.

The utility model discloses a multifunctional wireless charging device with a mirror. The multifunctional wireless charging device comprises a base, a third charging coil, a first movable part, a first charging seat, a first charging coil, the mirror and a control module. When the first charging seat is folded relative to the base, a user can place the to-be-charged device on the first charging seat for wireless charging. In this state, the mirror is hidden between the first charging seat and the base. And when the first charging seat is unfolded relative to the base, the mirror forms a preset angle and faces the user, so that the user can conveniently use the mirror, and at the moment, the user can place the to-be-charged equipment on the base for wireless charging. The charging device is reasonable in structural design, the mirror can be opened and stored according to a preset angle, the charging device is convenient to use and not easy to break, wireless charging can be carried out no matter the mirror is in an unfolded state or a stored state, the practicability of the charging device is greatly improved, and the charging device meets various use scenes.

The invention relates to the technical field of carbon materials, in particular to a forming method of petroleum coke powder coke and formed coke. The invention provides a forming method of petroleum coke powder coke, which comprises the following steps: screening powder coke, and screening petroleum coke to obtain powder coke; preparing a mixture, namely adding an asphalt binder, a non-asphalt binder and water containing a surfactant into the coke breeze to obtain the mixture; pressing the mixture, namely pressing the mixture on a forming machine to obtain a formed coke green block; and calcining the formed coke block, namely calcining the formed coke green block to obtain the formed coke. By implementing the technical scheme disclosed by the invention, moisture-containing coke breeze can be directly treated, and the coke breeze does not need to be dried; the forming pressure is low, and the equipment requirement is low; the binder and formed coke are low in impurity content; the mixing and forming processes are carried out at normal temperature, heating is not needed, the process is simple, and energy consumption is low; the prepared formed coke green block is high in strength, and the calcined formed coke is high in strength and low in ash content.

The invention discloses a preparation method of a lithium ion battery negative electrode, and relates to the technical field of lithium batteries, and the preparation method comprises the following steps: S1, taking a self-assembled carbon nanotube and a carbonized polyimide film, mixing and grinding to obtain an active substance; s2, mixing and grinding an active substance and acetylene black to obtain electrode powder; s3, polyvinylidene fluoride is dissolved in N-methyl pyrrolidone, and an electrode adhesive is obtained; s4, uniformly mixing the electrode powder and an electrode adhesive to obtain electrode slurry; and S5, coating the surface of a copper foil with the electrode slurry, and drying to obtain the lithium ion battery negative electrode. The self-assembled carbon nanotubes and the carbonized polyimide film are mixed and ground to obtain an active substance, acetylene black is supplemented to prepare the electrode powder, and the N-methyl pyrrolidone solution of polyvinylidene fluoride is used as an electrode binder, so that the prepared lithium ion battery negative electrode can effectively improve the capacity and cycling stability of the lithium ion battery.

The utility model discloses a kind of processing of rehmannia tea are used to make tablet equipment, including frame, the blade mechanism is installed in the top of frame inner chamber, the slice seat that is used in cooperation with blade mechanism is installed in the bottom of frame inner chamber, the pushing mechanism is installed in the bottom of frame inner chamber and located slice seat one side;The blade mechanism includes two lifting frames, and the opposite side of two lifting frames is equipped with blade mounting seat, and the bottom of blade mounting seat is equipped with a plurality of blades.The utility model has the advantages of high efficiency, solves the problem that the existing traditional chinese medicinal material tablet equipment is not convenient for efficient processing of dry rehmannia when slicing long dry rehmannia, increases the labor intensity of staff, reduces the processing efficiency of rehmannia tablet.

The present invention discloses a method for selecting a grinding device for treating polymer injection discharge, which includes the following steps: data collection, investigating and understanding the commonly used tool types, the properties of discharge, and the commonly used discharge flow rate; simulation calculation, using simulation software and tool models to calculate the working conditions of the grinding tools under all working conditions and collect the results; verification and verification, according to actual production requirements and working conditions, determining the type and structure of the grinding tools, selecting multiple groups of grinding tools that can meet the grinding requirements, and conducting on-site tests to select grinding tools that meet the wear rate requirements. This is to solve the current problems of excessive wear and erosion of grinding tools in the discharge treatment process.

The present application relates to the technical field of plant specimen preservation, and particularly relates to a plant specimen original color preservation method based on chemical treatment, comprising the following steps: preparing dry plant specimens; preparing a premix solution; uniformly mixing mint, clove and thunder god vine, crushing, adding into an ethanol aqueous solution, sealing and standing for soaking, adding salicylic acid for ultrasonic treatment, filtering, removing solid matters, recovering ethanol, adding the dry plant specimens into the ethanol aqueous solution, soaking at a temperature of 30-40 DEG C, adding sodium salicylate, trehalose and a color protection agent for stirring, taking out the treated plant specimens, and obtaining pretreated plant specimens; uniformly spraying the premix solution to the surface of the pretreated plant specimens, placing the plant specimens into a specimen clamp for flattening, low-temperature cold treatment, then increasing the temperature for heat preservation, decreasing the temperature for cold treatment again, and freeze-drying; the present application can basically maintain the original color of the plant specimens, improves the identification rate for specimen identification, the preservation method has good mildew-proof effect, can effectively prevent specimen damage, is convenient for classification and preservation, and has longer durability.

The application discloses an inorganic composite solid electrolyte and a preparation method thereof, and relates to the technical field of lithium batteries, and specifically discloses an inorganic composite solid electrolyte and a preparation method thereof. The preparation method of the inorganic composite solid electrolyte comprises the following steps: S1, mixing lithium salt, metal oxide A, metal oxide B and ammonium dihydrogen phosphate, wherein the metal oxide B is titanium oxide, and intermittent vibration ball milling is performed to obtain mixed powder; S2, adding lanthanum oxide and germanium oxide into the mixed powder obtained in the step S1, and continuing to perform intermittent vibration ball milling to obtain composite powder; and S3, performing low-temperature sintering on the composite powder obtained in the step S2, and pressing to obtain an inorganic composite solid electrolyte film layer. The preparation method can significantly improve the reaction activity and synergistic effect among raw materials by adopting two-step intermittent vibration ball milling and one-step low-temperature sintering, and the conductivity of the inorganic composite solid electrolyte and the lithium ion transmission performance and cycle life of the solid battery are improved, and meanwhile, no solvent is used in the preparation process, and the sintering cost is reduced.

The invention discloses a metronidazole tablet and a preparation method thereof. The metronidazole tablet is prepared from the following components in parts by mass: 55 to 60 parts of metronidazole, 35 to 40 parts of a filling agent, 5 to 10 parts of sorbitol, 1 to 5 parts of povidone K30, 5 to 15 parts of an adhesive, 0.2 to 0.5 part of magnesium stearate and 2 to 6 parts of a coating agent. By using sorbitol and povidone K30 in the auxiliary materials, the brittleness of the tablet can be improved, and the hardness and stability of the tablet are improved, so that the tablet is not easy to break in the production and storage processes. In addition, the dissolution rate of the tablet can be improved through the synergistic effect of the sorbitol and the povidone K30, so that the bioavailability of the medicine is improved.

The application discloses a furnace body for high-temperature diffusion oxidation annealing process, manufacturing equipment and a manufacturing process. The furnace body comprises a base body part. The base body part is a through-cylinder structure, and is made of silicon carbide. The furnace wall of the base body part is provided with an electric heating element. The manufacturing equipment comprises a forming die and a liquid pool. The forming die comprises a columnar die body. Both ends of the die body are provided with end plates, which are a first end plate and a second end plate. The first end plate and the second end plate are respectively provided with flange parts which protrude outward from the die body. A plurality of detachable shaft bodies are connected between the flange parts of the first end plate and the second end plate. An outward-protruding plate body is arranged on the die body. The manufacturing equipment further comprises a suction pipeline, one end of which is connected to the end plate. In the application, silicon carbide is used as the material of the furnace body, so that the furnace body has strong heat resistance, heat conductivity and long service life. The design of the manufacturing equipment and the manufacturing process are in line with the structural characteristics of the furnace body, so that the furnace body can be conveniently produced and has high production efficiency.

The application discloses modified tricobalt tetraoxide and a preparation method and application thereof, and belongs to the technical field of battery materials. The modified tricobalt tetraoxide is doped with rare earth elements and aluminum simultaneously; the total doping amount of the rare earth elements is not more than 0.5% in terms of mass percentage; and the doping amount of the aluminum is not more than 1.2%. The modified tricobalt tetraoxide has a relatively compact structure and high mechanical strength, is not easy to be broken during calcination, and has no surface floating powder phenomenon, so that the electrochemical performance of downstream product lithium cobaltate positive electrode material is improved.

This invention relates to the field of granular fertilizer production technology and discloses a preparation process for ammonium chloride granular fertilizer. The process includes raw material pretreatment, gradient granulation, segmented drying, surface modification, and screening and packaging. By adding a hydrophobic modifier to the raw material and using the hydrophobic modifier to modify the surface of ammonium chloride, the ammonium chloride granules are guaranteed to have low hygroscopic properties. At the same time, the construction of a hydrophobic layer prevents the penetration of external environmental moisture into the granules, ensuring the stability of the ammonium chloride granules during storage and transportation and reducing the risk of fertilizer clumping. By using sodium alginate and calcined bentonite as a binder and utilizing their synergistic bonding effect, a dense internal skeletal structure is formed in the granules, giving the ammonium chloride granules excellent strength. At the same time, the granules are guaranteed to have regularity during granulation, ensuring that the ammonium chloride granules are not easily broken during transportation and use.

The invention provides a preparation method of water-resistant spherical aluminum nitride-boron nitride composite powder. The preparation method comprises the following steps: heating a boron source, an aluminum source, a carbon source, an alkaline nitrogen source and distilled water in a reaction kettle for reaction to obtain aluminum nitride-boron nitride precursor slurry; then, uniformly mixing the aluminum nitride-boron nitride precursor slurry with yttrium aluminate, and performing spray granulation to obtain a spherical aluminum nitride-boron nitride precursor; then putting the spherical aluminum nitride-boron nitride composite powder into an atmosphere furnace for melting and calcining under a protective atmosphere to obtain spherical aluminum nitride-boron nitride composite powder; and finally, modifying through a coupling agent and resin to obtain the water-resistant spherical aluminum nitride-boron nitride composite powder. The powder has the advantages of higher sphericity, uniform particle size distribution, smooth surface, compact structure and excellent flowability and dispersity; the resin coating layer effectively improves the hydrolysis resistance of the powder, and enhances the long-term stability and reliability of the powder.

This application discloses an integrated infrastructure wastewater treatment system, including an intelligent monitoring unit for controlling wastewater flow and collecting wastewater parameters at different locations, and a classification collection unit comprising collection mechanism A, collection mechanism B, wastewater tank A, wastewater tank, and collection mechanism C for separately collecting mud wastewater, cleaning wastewater, domestic wastewater, chemical wastewater, and surface mixed wastewater generated in the infrastructure construction area; a pretreatment unit, a core treatment unit, an advanced treatment unit, and a reuse and discharge unit. This invention classifies and collects different types of wastewater and sewage, then processes them through pretreatment, core treatment, and advanced treatment units to treat pollutants in different categories step by step. In particular, it innovatively uses feedforward dynamic compensation and dynamic pH monitoring to perform real-time chemical dosing, avoiding problems such as low chemical utilization leading to waste or insufficient chemical addition resulting in poor treatment effects.

The invention relates to the technical field of frozen drinks, and particularly discloses a frozen drink coating composition and application thereof. The frozen drink coating composition consists of 0.05 to 1 percent of milk powder, 0.5 to 4 percent of sugar raw material, 0 to 0.2 percent of essence, 0 to 0.2 percent of pigment, 0 to 0.1 percent of flavoring agent and the balance of water, the sugar raw material is high fructose corn syrup and / or glucose powder. When the frozen drink coating composition is used as an ice shell for preparing the frozen drink, the ice shell can be kept in an ice block state, is crispy and chewy, is not easy to fall off, crack and slag, and is better attached to ice cream.

The invention relates to a preparation process of healthy and environment-friendly starch cat litter with high water absorbability, which comprises the following preparation steps: taking a certain amount of corn starch, adding water into the corn starch, and uniformly stirring to form powder, the water adding amount being 30-40% of the mass of the taken corn starch; the stirred powder is pre-pressed by adopting a screw granulator, the extrusion pressure of the screw granulator is regulated and controlled to be 500-600 MPa, the heating temperature is regulated and controlled to be 70-120 DEG C, and the temperature and the pressure are kept so that the powder can be completely gelatinized; carrying out tabletting molding on the gelatinized powder by adopting a tabletting machine; and performing low-speed crushing treatment on the flaky material by adopting a crusher to obtain the formed starch cat litter. The cat litter product produced by the preparation process is purely prepared from the corn starch, does not contain any auxiliary glue, is non-toxic and harmless, healthy and environment-friendly, has very high water absorption, water retention, viscosity and viscoelasticity, does not generate dust during use, and is good in caking property.

The invention discloses a sulfite gold electroforming solution and a preparation method thereof. The gold electroforming solution preferably comprises the following components: 10-16 g / L of sodium gold sulfite, 80-100 g / L of sodium sulfite, 40-55 g / L of sodium citrate, 10-15 g / L of disodium ethylene diamine tetraacetate, 50-70 g / L of disodium hydrogen phosphate, 1.5 g / L of sodium m-nitrobenzoate, 20-50 mg / L of antimony potassium tartrate and 10-50 mg / L of ammonium chloroplatinate. Hard gold ornaments manufactured by adopting the plating solution are high in purity and good in toughness, the hardness is easy to adjust, an electroforming gold layer contains trace precious metal platinum, the electroforming gold layer is more easily accepted by customers, and jewelry manufacturers can meet the requirements of various types of hard gold ornaments without opening more electroforming cylinders.

The invention provides a method for pre-sintering ceramsite by using a chain grate, and relates to the technical field of solid waste recovery, and the method comprises the following steps: crushing solid waste, and granulating to prepare ceramsite green pellets; the ceramsite green pellets are conveyed to a chain grate machine and evenly distributed, then pass through a drying section, a decarburization section and a preheating section and are sintered at the temperature of 850-1000 DEG C, and hot-state pre-sintered ceramsite is obtained; feeding the hot pre-sintered ceramsite into a rotary kiln for high-temperature roasting at the temperature of 1120-1190 DEG C, and cooling in a cooling machine to obtain a ceramsite finished product. According to the method, the cost of recycling solid waste can be effectively reduced, the equipment structure is simple, fuel is diversified, and finished products produced from the rotary kiln can be high-strength ceramsite and can also be used for producing sintered and expanded ceramsite; and the pre-sintered ceramsite can be directly used as a porous ceramsite finished product to be applied to the fields of moisturizing, reclamation, water treatment and the like.

The utility model relates to the technical field of positive electrode material separation, in particular to lithium battery positive electrode material separation equipment which comprises a box body and a separation mechanism, the separation mechanism comprises a cover plate, a mounting ring, a mounting rod, a mounting plate, a plurality of telescopic assemblies, a grinding plate, a base, a rotating roller, a rotating rod, a screening box, a collecting box and a vibrating machine, the mounting plate is fixedly connected with one end of the mounting rod, the multiple telescopic assemblies are arranged between the grinding plate and the mounting plate, the two ends of the base are fixedly connected with the rotating roller and the rotating rod correspondingly, one end of the rotating rod is rotationally connected with the box body, and the screening box and the collecting box are slidably connected with the box body; the vibration machine is fixedly connected with one end of the box body, aluminum in the positive electrode material can be separated out through the separation mechanism, aluminum can be obtained without other chemical reactions, and then the separation efficiency of the aluminum in the positive electrode material is improved.

The utility model discloses a compression-resistant structure of a buried fire hydrant. The compression-resistant structure comprises an inner-layer pipe body and an outer-layer pipe body arranged on the outer side of the inner-layer pipe body in a sleeving mode. Elastic raised lines are arranged on the outer wall of the inner-layer pipe body; an elastic layer is arranged between the outer-layer pipe body and the middle-layer pipe body; the inner wall of the outer-layer pipe body is connected with the outer wall of the middle-layer pipe body through the elastic layer, and the inner-layer pipe body is sleeved with the middle-layer pipe body. The elastic layers and the middle-layer pipe body are extruded when the outer-layer pipe body receives pressure, and the symmetrical elastic layers provide resilience force, so that the outer-layer pipe body achieves the compression resistance effect and is not prone to being extruded and broken, and therefore the compression resistance effect of the buried fire hydrant is improved.

The invention relates to the technical field of tablet presses, and discloses a medicine tablet press which comprises a frame, an upper die, a middle die and a lower die which are parallel to one another are rotationally arranged in the frame, a power device used for driving the upper die, the middle die and the lower die to rotate synchronously is arranged on the frame, and a plurality of first mounting holes are evenly formed in the middle die in the circumferential direction. The frame is further provided with a feeding device used for feeding the sheet dies one by one, the upper die is evenly provided with a plurality of second mounting holes in the circumferential direction, the second mounting holes are provided with upper punches through first reset springs, the lower die is evenly provided with a plurality of third mounting holes in the circumferential direction, and the third mounting holes are provided with lower punches. An upper pressing disc is installed on the frame through a first support, a lower pressing disc is further fixedly installed on the frame through a second support, a tablet pressing protruding section and a material ejecting protruding section are arranged on the lower pressing disc, the lower pressing disc is synchronously arranged, so that the upper punch and the lower punch apply pressure to powder in a tablet die synchronously, the pressure is balanced, and tablets are prevented from being broken.

The embodiment of the application provides a kind of pedestrian loitering detection method, device, equipment and medium, and the method specifically includes: obtaining the video stream corresponding to video area;The video stream is tracked to obtain the track contained in the video stream;The track corresponds to track feature;The track feature includes: pedestrian position feature and pedestrian identity feature;According to the pedestrian identity feature, the track contained in the video stream is associated to corresponding pedestrian;According to the pedestrian corresponding pedestrian position feature, the track distribution information corresponding to pedestrian is determined;According to the track distribution information, it is judged whether the pedestrian is candidate loitering target.The embodiment of the application can improve the accuracy of pedestrian loitering detection.